Information on enlisted military occupations is offered in the source book to arrive at a comprehensive statement of job tasks in the military service and their similarities to jobs in civilian life. Basic information about five areas of the U.S. military services (Army, Navy, Air Force, Marine Corps, and Coast Guard) focuses on their military enlistment, training, promotion, assignment, advanced education programs, and military reserve components. A section is devoted to the structure and use of the source book, examining the classification (specialty/rating) system of the military service based on the occupational cluster concept and the Dictionary of Occupational Titles (DOT). A significant section (256 pages) of the source book focuses on job statements for military service occupations which are equated to corresponding civilian occupations according to 10 categories: (1) professional, technical, and managerial occupations; (2) clerical and sales occupations; (3) service occupations; (4) farming, fishery, forestry, and related occupations; (5) processing occupations; (6) machine trades occupations; (7) bench work occupations; (8) structural work occupations: (9) miscellaneous occupations: and (10) military unique occupations (no civilian counterpart). References and a cross-indexed list of civilian titles with their corresponding DOT code are included. (EC)